商用 しょうよう電源 でんげん しき計算 けいさん ではありません
shōyōdengen shi kikeisankidewārimasen

Noun
Desu Copula
Negation Auxiliary

The polite negative form of 商用電源式計算器

1. Not a commercially powered calculator.; It is not a commercially powered calculator.

Negative
Polite
Formal Register
Computing